Light emitting device with a stepped structure

A light emitting device, comprising:

• a substrate;
• a first semiconductor layer;
• a light emitting layer, disposed on the first semiconductor layer;
• a second semiconductor layer, disposed on the light emitting layer, wherein the first semiconductor layer, the light emitting layer, and the second semiconductor layer form a stepped structure disposed on the substrate, and the stepped structure comprises:
• a first electrode connection surface, located on the first semiconductor layer;
• a second electrode connection surface, located on the second semiconductor layer;
• a connection portion, connecting the first electrode connection surface and the second electrode connection surface and at least comprising a first surface, a second surface, and a third surface, wherein a first corner is formed between the first surface and the second surface, a second corner is formed between the second surface and the third surface, and an extending direction of the second surface is substantially different from an extending direction of the first surface and an extending direction of the third surface;
• a bottom surface;
• a first sidewall, connected with the first electrode connection surface and the bottom surface;
• and
• a second sidewall, connected with the second electrode connection surface and the bottom surface, wherein a first height between the second surface and the first electrode connection surface is greater than a second height between the bottom surface and the first electrode connection surface;
• an active device, disposed on the substrate;
• a common line, disposed on the substrate;
• a first electrode, disposed on the first electrode connection surface and the first sidewall, wherein the first electrode is electrically connected with the first semiconductor layer;
• and
• a second electrode, disposed on the second electrode connection surface and the second sidewall, wherein the second electrode is electrically connected with the second semiconductor layer;
• wherein:
• the first electrode is further electrically connected with the active device and the second electrode is further electrically connected with the common line;
• or
• the first electrode is further electrically connected with the common line and the second electrode is further electrically connected with the active device;
• wherein a first distance between the second surface and the bottom surface is not equal to a second distance between the light emitting layer and the bottom surface;
• and the third surface is not covered by the first electrode.